Stability of Accelerating Cosmology in Two Scalar-Tensor Theory: Little Rip versus de Sitter

被引：20

作者：

Ito, Yusaku ^{[1
]}

Nojiri, Shin'ichi ^{[1
,2
]}

Odintsov, Sergei D. ^{[3
,4
,5
]}

机构：

[1] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan

[2] Nagoya Univ, Kobayashi Maskawa Inst Origin Particles & Univers, Nagoya, Aichi 4648602, Japan

[3] IEEC CSIC, ICREA, E-08193 Barcelona, Spain

[4] IEEC CSIC, Inst Ciencies Espai, Fac Ciencias, E-08193 Barcelona, Spain

[5] Tomsk State Pedag Univ, Tomsk 634041, Russia

来源：

ENTROPY | 2012年 / 14卷 / 08期

关键词：

dark energy; scalar tensor theory; little rip; DARK ENERGY; MODIFIED GRAVITY; CONSTRAINTS; SUPERNOVAE; INFLATION; UNIVERSE; AGE;

D O I：

10.3390/e14081578

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We develop the general reconstruction scheme in two scalar model. The quintom-like theory which may describe (different) non-singular Little Rip or de Sitter cosmology is reconstructed. The number of scalar phantom dark energy models (with Little Rip cosmology or asymptotically de Sitter evolution) is presented. Stability issue of such dark energy cosmologies as well as the flow to fixed points are studied. The stability of Little Rip universe which leads to dissolution of bound objects sometime in future indicates that no classical transition to de Sitter space occurs. The possibility of unification of inflation with Little Rip dark energy in two scalar theory is briefly mentioned.

引用

页码：1578 / 1605

页数：28

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